Machine for thickening the edges of soles.



J. B. COLLIN-S.

MAGHNE FOR THIGKENING THE EDGES OF SOLES.

APPLIGATION FILED MAY 25, 1906.

' Patented Apr. 14, 1914 rn sTA'rns rnrnn/ JAMES E. COLLINS, OF DANVEBS,MASSACHUSETTS, ASSIGNOR TO UNITED SHOE` MACHINERY COMPANY, OF PATERSON,NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR THICKENING THE EDGES OF SOLES.

To all whom t may concern.'

Be it known that I, JAMES E. COLLINS, a citizen of the United States,residing at Danvers, in the county of Essex and Commonwealth ofMassachusetts, have invented certain Improvements in Machines forThickening the Edges of Soles, of which the following descriptiominconnection with the accompanying drawings, isa specificasirable thatthis size be not changed during the thickening and condensing operation.This invention therefore preferably provides for maintaining the size orwidth of the sole.

One of the objects of this invention is to thicken the edges of soles sothat if it be desired to remove a thin shaving from the upper sidearound the edge, subsequently to securing the sole and upper together,but prior to edge trimming, as in the operation of fleshing, theoriginal thickness of the edge of the sole will not be reduced by thatoperation.

Another object is to condense somewhat the material constituting theedge, whereby a cleaner cut is made by the edge-.cutting tool during theedge-trimming operation.

A further object of this invention is to form a groove or depression inthe upper side of the sole extending around inside of the edge. Thisgroove is deepest where the lower edge of the upper fits upon the sole,and inclines upwardly, whereby an abrupt bend of the upper is preventedas it turns away from the sole in some kinds of shoes. The edge of theupper lits down into this groove, thus preventing a projection of theupper above the surface of the sole at the meeting point.

A further object is to condense the ma- Speciication of Letters Patent.

Application filed May 25, 1906.

Patented Apr. 14e, 19rd. Serial No. 318,733.

terial beneath the groove or depression. This portion of the sole, beingthinner than the remaining portion, would wear through more quickly wereit not rendered more wear-resisting by condensing it.

The objects of this invention are best secured by using a machine whichhas a support for the sole and a conical roll which acts upon the sideof the sole opposite that engaged by the support in such a way as tocrowd material outwardly toward the edge of the sole, at the same timecondensing it and forming a groove or depression in the sole inside ofthe edge. The surface of the conical roll is preferably provided with aseries of grooves extending diagonally` of the surface in such a mannerthat they tend to work the material toward the outside of the edge ofthe sole. In order to maintain the size of the sole, an edge guide isprovided against which the material that is moved outwardly walls upinstead of spreading outwardly beyond the original edge of the sole. V

In the drawings,--Figiire l is a perspective view of the machine; Fig. 2is a side elevation, partly in section, of the parts which operatedirectly upon the sole; Fig. 3 is a detail view showing a portion of theedge of the sole as it appears after passing through the machine, andFig. t is a vertical section through a shoe showing the application ofthe sole thereto.

A base 1 which is to be secured to a bench or other support, carries arear standard 2 and a front standard 3. A gear l is rotatably mounted onthe standard 2, and this gear is turned by any convenient source ofpower, as here shown by a crank 5. A shaft 6 is rotatably mounted inhearings on the upper ends of the standards. This shaft carries a gear 7on its rear end in mesh with the gear 4, a gear Sintermediate its ends,and a support for thc stock in the form of a bed roll 9 on its frontend. The upper end of the front standard 3 has an enlargement l0 whichcarries an edge guide 11 and a stop 12, and which has a recess 13. Theedge guide is preferably in the form of a rotatable roll. An auxiliaryframe lll is pivoted at 15 to two ears 1G and 17 on the upper end of thestandard 2. The front portion 18 of this auxiliary frame forms a bearingfor a shaft 19 which has a bearing also in the rear part of the frame. Abifurcated extension 2() is secured to the upper end of the standard 3,and the bearing 18 which is preferably squared passes between the armsof the bifurcation. The shaft 19 carries a gear 21 on the rear end inmesh with the gear' 8, and a presser roll 22 on the front end. Thepresser roll has a conical surface 25 which preferably merges into acylindrical surface 2G, and a reduced portion 23 for the accommodationof the edge guide 11. The conical surface may be provided with grooveswhich are preferably inclined to the elements of the cone sol as toextend diagonally of the conical surface. The presser roll is removablyheld on the shaft 19 as for example by the nut 24 which permits removalfor repair or for the substitution of a new presser roll. The bearing 18 is held down by a stiff spring 27, the tension of which may beregulated by a set screw 2,8. AV rock shaft 29fpasses through theextension 20 and the recess 18, and'it carries' the tappetcam 30 whichlifts the bearing 18 and the presser roll 22 when the shaft is rocked.rfhis lifting of the presser rollpermits insertion and removal of thestock.4 The shaft is rocked by means under the control yof the operatoras by an arm 31 rigidly secured to the shaft and pivotally secured to arod 32 having a treadle (not shown) at its lower end.

The operation of the machine is as follows: Upon turning the gear 4,power is transmitted through the gear 7 to the shaft 6 to turn the bedroll 9. The gear 8 by meshing with the gear 21 in turn transmits powerto the shaft 19 so that the presser roll 22 is turned in the oppositedirection from the bed roll. Upon rocking the shaft 29 the auxiliaryframe 111 is turned upon the pivot 15 and the presser roll 22 raised topermit insertion of the stock a between the two rolls. The rock shaft isthen released and the presser roll is forced down upon the stock by thespring 27 acting upon the bearing 18. The sole is fed through betweenthe rolls by turning them in the direction indicated by the arrows inFig. l. The sole is kept in contact with the edge guide 11, and thematerial which the presser roll crowds toward the outer limit c of theedge is banked up against this guide and the size of the sole thusmaintained. The conical shape of the roll tends to produce a transfer ofmaterial in the tempered sole toward its edge, and the diagonallyarranged grooves increase this tendency, their effect resembling that ofa screw conveyer. Since the guiding face of the roll is contiguous tothe ends of the bed and presser rolls, these three rolls together form apocket into which material is forced constantly, and by which it isshaped. The

material in this pocket is put under pressure by the action of thepresser rolland the result is the condensing previously mentioned. Thepresser roll therefore performs three important functions, viz.:thickening, condensing and grooving the sole. The conical portion 25 ofthe presser roll forms the depression I) while the cylindrical portion26 forms the surface Z parallel to but higher than the main uppersurface of the sole. Fig. 4f shows the sole applied to a McKay shoe. helower edge of the upper lits into the yinclined depression ,Zi and theabruptness of 'the' bend is thus diminislied.` It will also be seen thatthe depression'provides a clearance for the upper.

While in the above description a complete machine has been described indetail in order to` fully set forth the preferred manner of applying theinvention, it will be understood that various changes may be made inarrangement and details without departing from'th'e spirit oftheinvention.

Having described my invention, I claim as newiand' desire to secure byLetters Patent of the United Statesz- 1. In a machine of theclassdescribed, the combination with `means for thickening theextreme'edge portion of a Sole, of'means for maintaining the initialsize of the sole.

2. In a machine of the class described, the combination with means forthickening and condensing the edge of asole, of means for maintainingthe initial size of the sole.

' 3. In a machine of the class described, the combination with means forthickening and grooving the extreme marginal portions ofa sole, of meansfor maintaining the initial size of the sole.

4. In a machineV of the class described, the combination with means forcondensing the extreme marginal portions of ka sole and for grooving thesole, of means for maintaining the initial size of the sole.

5. In a machine of the class described, the

combination with means for supporting a Y sole, of means for thickening,condensing, and grooving the marginal portions of the sole. Y

G. In a machine of the class described, the combination with yieldinglyactuated means for crowding material toward the edge of a sole andcondensing the marginal portion of the sole, of means for maintainingthe initial size of the sole.

7. In a machine of the class described, the combination with means forcrowding material toward the edge of a sole and condensing the same,l ofmeans for maintaining the initial size of the sole. Y

8. In a machine of the class described, the combination with a presserroll and a bed roll constructed and arranged to engage simultaneouslyopposite sides of a sole Vat opposite points and to thicken the edgeportion of a sole passed between them, of an edge guide arranged toengage the edge of thle sole while it is being acted upon b-y said rols.

9. In a machine of the class described, the combination of a conicalpresser roll and a bed roll constructed and arranged to operatesimultaneously on opposite sides of a sole at opposite points and tothicken the edge portion of a sole passed between them, and an edgeguiding roll having its guiding face positioned contiguous to theperipheral edges of said presser and bed rolls.

l0. In a machine of the class described, the combination with a p-resserroll having grooves extending diagonally of its surface, and a bed roll,said rolls being constructed and arranged to thicken the edge of a solepassed between the same, of an edge guide for the sole.

11. In a machine of the class described, the combination with a presserroll having a conical surface merging into a cylindrical surface, andhaving a reduced portion, of a bed roll substantially cylindrical inform, said rolls being constructed and arranged to thicken the edge of asole passed between them, and an edge guide mounted contiguculs1 to thereduced portion of said presser ro 12. In a machine of the classdescribed, the combination of a conical presser roll and a bed rollarranged to engage simultaneously opposite sides of a sole passedbetween them,

and an edge guiding roll having its peripheral face contiguous to theperipheral edges of said presser and bed rolls to form a pocket in whichthe part of the sole being operated upon by the bed and presser rolls isconfined. In testimony whereof I have signed my name to thisspecification in the presence of two subscribing witnesses.

JAMES E. COLLINS. Witnesses:

EDITH C. I-IoLBRooK, NELSON W. HOWARD.

Copies of this patent may be obtained for iive cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

